The Effect of Heart Rate on the Heart Rate Variability Response to Autonomic Interventions
Heart rate variability (HRV), the beat-to-beat variation in either heart rate (HR) or heart period (R-R interval), has become a popular clinical and investigational tool to quantify cardiac autonomic regulation. However, it is not widely appreciated that,
George E Billman
doaj +1 more source
Mobilisation readiness state and the frequency structure of heart rate variability [PDF]
A number of studies showed association of mental status with heart rate variability. This work discovered a feature of frequency structure of heart rate variability that is associated with mental readiness. In three independent groups of 64, 39, and 19 volunteers by the factor analysis of heart rate periodograms, it has been discovered that there are ...
arxiv
Prediction of VO\u3csub\u3e2\u3c/sub\u3e Peak Using Sub-Maximum Bench Step Test in Children [PDF]
The purpose of this study was to develop a valid prediction of maximal oxygen uptake from data collected during a submaximum bench stepping test among children ages 8-12 years.
Jacks, Dean E+2 more
core +1 more source
Heart Rate Variability and Heart Rate Recovery as prognostic factors [PDF]
Background Heart rate (HR) can appear static and regular at a time at rest, during exercise or recovery after exercise. However, HR is constantly adjusted due to factors such as breathing, blood pressure control, thermoregulation and the renin-angiotensin system, leading to a more dynamic response that can be quantified using HRV (heart rate ...
openaire +3 more sources
Discrete Scale Invariance in the Cascade Heart Rate Variability Of Healthy Humans [PDF]
Evidence of discrete scale invariance (DSI) in daytime healthy heart rate variability (HRV) is presented based on the log-periodic power law scaling of the heart beat interval increment. Our analysis suggests multiple DSI groups and a dynamic cascading process. A cascade model is presented to simulate such a property.
arxiv
Comparison of the Erythrocyte Sedimentation Rate, C-Reactive Protein, Serum Diphenylamine, and Tetrammonium Tests in Rheumatic Fever and Rheumatic Heart Disease [PDF]
R. D. Eastham, P. Székely, Kade Davison
openalex +1 more source
Model-driven Heart Rate Estimation and Heart Murmur Detection based on Phonocardiogram [PDF]
Acoustic signals are crucial for health monitoring, particularly heart sounds which provide essential data like heart rate and detect cardiac anomalies such as murmurs. This study utilizes a publicly available phonocardiogram (PCG) dataset to estimate heart rate using model-driven methods and extends the best-performing model to a multi-task learning ...
arxiv
What does the correlation dimension of the human heart rate measure? [PDF]
It is shown that in the case of human heart rate, the scaling behaviour of the correlation sum (calculated by the Grassberger-Procaccia algorithm) is a result of the interplay of various factors: finite resolution of the apparatus (finite-size effects), a wide dynamic range of mean heart rate, the amplitude of short-time variability being a decreasing ...
arxiv
Heart Rate Patterns Observed in Medical Monitoring [PDF]
Medical monitoring of heart rate patterns during conditions of sleep, quiet rest, breath-holding, hypoxia, and increased g forces of aircraft ...
Johnson, R. L., Simons, D. G.
core +1 more source
Heart rate impact on the reproducibility of heart rate variability analysis
stiffness in hypertensive patients through endothelial dysfunction. Diabetologia 2012;55:1847–55. [7] Giannarelli C, Bianchini E, Bruno RM, et al. Local carotid stiffness and intima–media thickness assessment by a novel ultrasound-based system in essential hypertension. Atherosclerosis 2012;223:372–7. [8] Lee MO, Song SH, Jung S, et al.
Sacha, Jerzy+3 more
openaire +4 more sources